As a Noun:
1. Something which grows on a tree or a bush and which contains seeds or a stone covered by a substance that you can eat. Apples, oranges, grapes, and bananas are examples. English = fruit.
2. Something roundish which grows on a tree or a bush and which contains seeds or a stone covered by a substance that you can eat, especially an apple. Oranges, pears, and peaches are other examples.
As a Verb or Adjective:
1. To eat a piece of roundish fruit.